HP FN038UAABA, FN037UAABA manual RTC battery

RTC battery

NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared.

Description	Spare part number
RTC battery	449137-001

Before removing the RTC battery, follow these steps:

1.Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

2.Disconnect all external devices connected to the computer.

3.Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.

4.Remove the battery (see Battery on page 41).

5.Remove the keyboard (see Keyboard on page 55).

Remove the RTC battery:

1.Press the clip on the right side of the battery socket (1) toward the right until the battery disengages from beneath the clip.

2.Remove the RTC battery (2) from the system board.

Reverse this procedure to install the RTC battery.

58 Chapter 4 Removal and replacement procedures